Reconfigurable Photovoltaic Array Systems for Adaptive and Fault-Tolerant Energy Harvesting

Author(s):  
Naehyuck Chang ◽  
Massoud Pedram ◽  
Hyung Gyu Lee ◽  
Yanzhi Wang ◽  
Younghyun Kim
Author(s):  
Luca Gnoli ◽  
Jimson Mathew ◽  
Marco Ottavi ◽  
Giuseppe Carnicelli ◽  
Alessio Parisi ◽  
...  

2012 ◽  
Vol 21 (01) ◽  
pp. 1250004 ◽  
Author(s):  
LINJIE ZHU ◽  
TONGQUAN WEI ◽  
XIAODAO CHEN ◽  
YONGHE GUO ◽  
SHIYAN HU

Fault tolerance and energy have become important design issues in multiprocessor system-on-chips (SoCs) with the technology scaling and the proliferation of battery-powered multiprocessor SoCs. This paper proposed an energy-efficient fault tolerance task allocation scheme for multiprocessor SoCs in real-time energy harvesting systems. The proposed fault-tolerance scheme is based on the principle of the primiary/backup task scheduling, and can tolerate at most one single transient fault. Extensive simulated experiment shows that the proposed scheme can save up to 30% energy consumption and reduce the miss ratio to about 8% in the presence of faults.


Electronics ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 293 ◽  
Author(s):  
Ehsan Jamshidpour ◽  
Philippe Poure ◽  
Shahrokh Saadate

This paper proposes a new Unified Switch Fault Diagnosis (UFD) approach for two-stage non-isolated DC-DC converters used in energy harvesting applications. The proposed UFD is compared with a switch fault diagnosis consisting of two separate fault detection algorithms, working in parallel for each converter. The proposed UFD is simpler than the two parallel fault diagnosis methods in realization. Moreover, it can detect both types of switch failures, open circuit and short circuit switch faults. It can also be used for any two-stage non-isolated DC-DC converters based on two single switch converters, no matter the converter circuits in each stage. Some selected simulation and Hardware-in-the-Loop (HIL) experimentation results confirm the validity and efficiency of the proposed UFD. Also, the proposed UFD is applied successfully for fault-tolerant operation of a buck/buck–boost two-stage converter with synchronous control and a redundant switch.


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